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Study on welding sequence of butt-welded structures based on equivalent heat source parameter
- Source :
- International Journal of Pressure Vessels and Piping. 163:15-22
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- A thermo-elastic-plastic numerical method based on the hybrid inversion combing experiment results and numerical results was developed. The influence of various factors in the welding process on the welding deformation and residual stress was taken into account through the equivalent heat source parameter (EHSP). The out-of-plane displacement and residual stress of the butt-welded plate were measured firstly with electrical measurement method and hole-drilling method respectively. Then, a function was established to evaluate the standard error (SE) employing different heat source parameters between numerical and experimental results, and the EHSP corresponding to SEmin for the current material and welding conditions was inversed. At last, the EHSP was applied to the investigation of welding sequence. This method is also suitable for other welding methods and weld types.
- Subjects :
- Measurement method
Sequence
Materials science
business.industry
Mechanical Engineering
Numerical analysis
02 engineering and technology
Welding
Combing
Structural engineering
Function (mathematics)
Displacement (vector)
020501 mining & metallurgy
law.invention
020303 mechanical engineering & transports
0205 materials engineering
0203 mechanical engineering
Mechanics of Materials
law
Residual stress
General Materials Science
business
Subjects
Details
- ISSN :
- 03080161
- Volume :
- 163
- Database :
- OpenAIRE
- Journal :
- International Journal of Pressure Vessels and Piping
- Accession number :
- edsair.doi...........12a70189b622f89cf4aab820b55aeea1